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What type of a wave front is observed fr...

What type of a wave front is observed from a distant source of light ?

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A distance source of light produces plane wave front.
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A beam of light of wavelength 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2m away. The distance between the fist dark fringes on either side of the central bright fringe is

A beam of light of wavelength 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2 m away. The distance between the first dark fringes on either side of the central bright fringe is

SUBHASH PUBLICATION-PUE BOARD MODEL QUESTION PAPER 1-QUESTION
  1. Define magnetic permeability of a substance.

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  2. Name the rule which gives the direction of induced current in a conduc...

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  3. What type of a wave front is observed from a distant source of light ?

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  4. Give an example for nuclear fusion reaction.

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  5. Define Energy band gap in solids.

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  6. The output of an OR gate is connected to the input of a NOT gate. Nam...

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  8. State and explain Coulomb,s law in electrostatics.

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  11. Write any four characteristics of electromagnectic waves. Give two use...

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  12. Using Huygens principle , draw a diagram to show the refraction of pla...

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  13. Mention two observations of Geiger- Marsden's experiment on scattering...

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